PARDISO and DSS

[Vahid_Jalili]

Hi all,

I wanted to compare the LU factorization time done by DSS and PARDISO on a quad core Intel CPU in MS VS 2008. In PARDISO I have set the iparm(2)=3 to use parallel threads, however I am not seeing any acceleration in compare with DSS or even when iparm(2)=0 or 2.

If PARDIOS is faster than DSS? and if DSS is using parallel threads by default?

Thanks.

[ArturGuzik]

Vahid,

you won't see any speed up bacause DSS is just a simplier interface to Pardiso. Core is the same.

A.

[Gennady_F_Intel]

exactly,DSS is just different, simplified interface which provides the same efficiency of calculations.

--Gennady

[Vahid_Jalili]

You mean both DSS and PARDISO are using all 4 cores of the quad core CPU by default? We don't need to set anything for this purpose, right?

Thank you.

[Gennady_F_Intel]

It depends of version of MKL you are using. For the latest (10.2 and 10.3) versions that's correct.

--Gennady